.shelf {
    width: 100%;
    .shelf_hd {
        width: 100%;
        height: 50px;
    }
    .list {
        width: 94%;
        // margin: 0 ;
        margin: 20px auto;
        display: grid;
        grid-template-columns: auto auto auto;
        grid-template-rows: auto auto auto;
        justify-content: space-around;
    }
}